TY  - JOUR
AU  - Raymond F. Tennant
TI  - Subgroup Lattices for Crystallographic Groups
JO  - Visual Mathematics
PY  - 2002
VL  - 4
IS  - 4
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/VM_2002_4_4_a3/
LA  - en
ID  - VM_2002_4_4_a3
ER  -